Someone in the thread mentioned about air not blowing through the center vents (forced through while driving) when the system is off as being an indicator of the recirculation flaps working. I'm guessing that when the system is turned off that the recirc flaps close. Does this sound about right?

Sure hope it's not the pods. Incidentaly, evaporator failures are unheard of in my neck of the woods. Must be humidity/use dependent.